Discounts on a customs value are not a default option within ShipHero. You will need to utilize automation rules to apply discounts to customs value. If no transaction of monetary value occurs, shipments are still subject to duties and taxes. The shipper/exporter is responsible for including customs value-only statements on the customs or commercial invoice.
Note: If no customs value, when shipping international, the price of the product will be used for the customs value.
If there is a customs value, this value will be used.
If there is a discount, the discount will be applied, but the discount will not be applied if it is 100% of the order.
An automation rule will need to be created so that ShipHero knows how you want to apply a discount to the customs value: